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公开(公告)号：US09762821B2
公开(公告)日：2017-09-12
申请号：US14583029
申请日：2014-12-24
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kyung-Ho Lee , Hee-Sang Kwon
CPC classification number: H04N5/347 , H04N5/35554 , H04N5/378
Abstract: A unit pixel of an image sensor includes a charge generation unit, a signal generation unit, and a ground control transistor. The charge generation unit generates photo-charges in response to incident light and provides the photo-charges to a floating diffusion area in response to a transmission control signal. The signal generation unit generates an analog signal having a magnitude corresponding to an electrical potential of the floating diffusion area based on a reset control signal and a row selection signal. The ground control transistor is coupled between the floating diffusion area and a ground voltage, and is turned on in response to a ground control signal.
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